Clamp



H. KREBS Nov. 22, 193 2.

CLAMP Filed April 9. 1952 Patented Nov. 22, 1932 nrmrmn xnnns, or SUNBURY; IOWA CLAMP Application filed April 9,

This invention relates to a clamp designed primarily for use in connection with fence stretchers.

Heretofore it has been difficult to connect stretchers to a fence fabric so as not to distort the fabric while being subjected to a pulling action.

The present invention has for an object the provision of clamp members which will extend throughout the width of the fabric, there being provided means whereby the pulling action of the stretchers will draw the clamping members more tightl toward each other to bind on the fabric an prevent slipping.

A further object is to provide a clamp which is simple, durable and compact and which can be applied readily.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawing the preferred form of the invention has been shown.

In said drawing:

Figure l is a side elevation of a portion of a fence fabric to which the clamp is applied.

Figure 2 is an enlarged section on line 2-2, Figure 1.

Figure 3 is an enlarged section on line 33, Figure 1.

Figure 4 is an elevation showing one of the wear plates.

Referring to the figures by characters of reference, 1 designates opposed similar bars of requisite length and strength each of which is provided at desired points with pairs of superposed slots 2 extending transversely therethrough and matching with slots 3 formed in wear plates 4 which are fastened to the bars at their outer sides.

Tie plates 5 are insertible into the slots 2 and 3 so that their ends will project outward- 1y from the plates 4. In the end portions of 1932. serial No. 604,843, j g

each tie plate are provided openings .6 for the reception of bolts 7. S acingfsleeves 8 are mounted on the bolts" et ween the tieplates and the bolts are, of course, provided with nuts 9 for holding them in place.

Wedging plates 10 are mounted between each of the plates 4 and the adjacent sleeve 8 and the small end of each of these slideshas a chain 11 or the like connected to it for engagement by a hook H or other suitable device forming a part of the fence stretching mechanism, not shown.

In practice the bars 1 are placed at opposite sides of the fabric F close to the end thereof and perpendicular to the bottom edge of the fabric. Tie plates 5 are then inserted through the slots 2 and 3 and fastened together at their ends by the bolts 7 so that the parts will appear-as in the drawing. The

Wedging slides 10 are then inserted between sleeves 8 and plates land the connecting devices 11 are attached to the wire'stretchers. The wedges can be driven longitudinally to force the bars 1 tightly against the fabric and obviously when the stretcher is put into action so asto pull through the connections 11 upon the Wedging slides, the tendency of these slides will be to increase the clamping action of the bars in proportion to the power supplied. After the fabric has beenv stretched and fastened the clamp can be removed simply by driving the wedging slides backwardly, removing the bolts and withdrawing the tie plates from the slots.

What is claimed is:

1. Afence clamp including opposed bars having transverse slots arranged in pairs, tie plates extending through the slots and projecting outwardly from the bars, removable connections between the end portions of the plates of each pair, Wedging slides movably mounted between the bars and said connec-' tions, and means for connecting a power mechanism to the wedgingslides to shift the bars toward each other in proportion to the power applied.

2. A fence clamp including opposed bars having a pair of transverse slots, tie plates removably mounted in the slots and project ing laterally from the bars, connections between the end portions of the tie plates, wedging slides removably mounted between the bars and the said connections, and pulling means connected to the wedging slides.

3. A fence clamp including opposed bars having transverse slots arranged in pairs, guide plates secured to the bars and. having. slots registering with the slots in the bars, superposed tie plates removably mounted in the slots and projecting outwardly from the bars, detachable connections hetweenthe end portions of the superposed tie plates, wedging slides removably mounted between the guide plates and the connections between the tie plates, and pulling means connected to the slides. V W p In testimony that I claim the foregoing asmy own, I- have hereto affixed my signature.

' r HERMAN KREBS. 

